基于四阶累积量的子空间测向方法研究

On DOA Estimation Method Based-on Fourth-order Cumulant

摘要: 研究了四阶累积量在子空间测向中的几种应用,包括四阶累积量用于色高斯噪声抑制、阵列扩展及提高算法对模型误差的稳健性等几个方面,提出了四阶MUSIC和四阶ESPRIT测向方法,并用计算机模拟验证了文中的有关结论。

Abstract: In this paper,the DOA(direction of arrival) estimation methods based on fourth-order cumulant are investigated,and the algorithms MUSIC and ESPRIT based on fourth-order cumulant are presented.The fourth-order MUSIC has the ability of array extension,and the fourth-order ESPRIT is robust to the channel uncertainty model errors.The results are verified by the simulation experiments.